I am not a fan of the large rims and tiny rubber i see some 1988 GT Fieros wearing.
I like the stock look and am using 205 60 15 on the front and 215 60 15 on the rear.

I would like to know how wide a tire i can go on the rear.
Showoffs submitting photos welcome!
Thanks for your responses.

I'm using '88 rims on my '85GT. I have 225-50x15 on the rear, this size gave me the stock tire OD for the '85GT.






They even look good from space...

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RickN
White 88GT 5spd
White 85GT Auto
White 99 F250SD 7.3PSD 6spd
1956 Ford 860 Tractor w/ Freeman Loader
20Ft H&H Tilt Bed Trailer

I had 265/50 R 14s on an 86 GT I had years ago.

sorry to steal your post but i have been wondering the same question. would a 235-60-15 work on the rear with no issues?

These are 235-60-15 on the front and 245-60-15 on the rear

I had 245-50-15 on the rear and 225-50-15 on the front of my 86 gt with no rubbing

I have 235/60R15s on the rear of my Fiero. No issues at all.

where did you find 245-50-15 the widest i could find are 225-50-15

That 245/50R15 size has been discontinued. Insufficient demand. Wasn't O.E. on anything.

IIKool Can you post a rear shot of your car please.

quote Originally posted by 88GT.FASTBACK: IIKool Can you post a rear shot of your car please.

No Problem.

Will 265 50 15 fit on my my stock rims?

quote Originally posted by 88GT.FASTBACK: Will 265 50 15 fit on my my stock rims?

I wouldn't do it. you are getting really wide with those.

I like my 205/60/15 fronts and 225/60/15 rears

I like this look.

Those are at least 275s. If 275s, they're on 9.5" or 10" rims. If 285s, then 10s or 10.5s. You can get a 265/50 onto a 7" rim, I've seen it many times, but expect unpredictable response when takling turns fast. I've even seen 295/50s on 7s, twice, but it's extremely unwise. If you want wide 15s, like 15x8s or 15x10s, then get some steel Beretta 15x6 wheels, then send them to Stockton Wheel in Stockton, California. Then forget about "offset", they'll tell you how they want you to measure the "backspacing" of your stock 15x7" rims, and that's what they'll re-hoop the Beretta wheels to have. So if you go to 15x8, the rims will stick out 1" more than your 7s, And you're set for 265/50s. Or go to 10s, then get a widebody kit or fender flares, and fit 295/50s.

[This message has been edited by Isolde (edited 11-28-2009).]

I think i will go with 265 50 15 on my original gold lace rims. They are wide and a close match for the original circumference which will hardly affect the speedometer reading.